Development on self-assembly technique for arrangement of chemically synthesized FePt nanoparticles

Takuma Hachisu, Atsushi Sugiyama, Tetsuya Osaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper reviews our study of bit patterned media (BPM) using L1 0 (face centered tetragonal)-FePt nanoparticles. For the practical use of L1 0-FePt nanoparticles to BPM, some breakthroughs are required: a highly ordered two-dimensional array of nanoparticles on a substrate, a controlled orientation of the axis of easy magnetization in vertical direction on a substrate. Previously, we reported about the achievement for uniformity FePt nanoparticles by controlling chemical synthesis conditions. Moreover, we confirmed the selective chemical interaction Pt in the surface of FePt nanoparticles and SH group with (3-mercaptopropyl)trimethoxysilane (MPTMS). This study presented a new hybrid technique combining the selective chemical bonding and a substrate with a geometrical grid in order to control the array of FePt nanoparticles with uniform direction of their magnetization. We succeed in preparing uniform array of nanoparticles on geometrical grid with size of 200 nm square prepared using ultraviolet nanoimprint lithography (UV-NIL).

Original languageEnglish
Title of host publicationMagnetic Materials Processes and Devices 11
Pages107-113
Number of pages7
Edition34
DOIs
Publication statusPublished - 2011 Dec 1
Event11th International Symposium on Magnetic Materials, Processes and Devices - 218th ECS Meeting - Las Vegas, NV, United States
Duration: 2010 Oct 112010 Oct 12

Publication series

NameECS Transactions
Number34
Volume33
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference11th International Symposium on Magnetic Materials, Processes and Devices - 218th ECS Meeting
CountryUnited States
CityLas Vegas, NV
Period10/10/1110/10/12

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Hachisu, T., Sugiyama, A., & Osaka, T. (2011). Development on self-assembly technique for arrangement of chemically synthesized FePt nanoparticles. In Magnetic Materials Processes and Devices 11 (34 ed., pp. 107-113). (ECS Transactions; Vol. 33, No. 34). https://doi.org/10.1149/1.3573592